The MCC101A4K5T3E20A with RFI filter is a type of VLT Micro Drive FC 51 manufactured by Danfoss. It is a frequency converter designed to control the speed and torque of AC induction motors at takes 3-phase AC input and converts it to 3-phase output. It has a filter that reduces interference created by switching and has four pre-programmed motor settings (standard, generator mode, energy saving mode, open loop vector mode). The filter has 132F0020, 134U2980, and 134U2981 components.